This study is done to demonstrate bioequivalence of rifampicin component in Myrin© 2 Fixed-Dose Combination Tablet (each contains 75 mg isoniazid and 150 mg rifampicin, Pfizer Inc) with equivalent dose of the reference Rimactane® capsule (each contains 300 mg rifampicin, Novartis Sandoz) in healthy Filipino male subjects. This study also aims to determine the safety and tolerability of Myrin© 2 tablets and Rimactane® capsules in these subjects.